Correction factors - are they in working order?

KristianS

Hi Wim @admin
WWID: zany-sound
Note: I have no direct solar input into my setup. So I rely fully on grid charging to fulfil my battery charging needs.

I wonder if I might check something with you, please, because I am consistently seeing underperforming charge rates on my setup. Due to my DNO restrictions, I have to reduce my Charge / Discharge rate to be in line with my G99 allocation of 5kW down from the actual 6kW of both the Battery/Inverter setup.
Dutifully, I have therefore altered my Inverter & Battery settings >> Battery rate to be the MAX I am allowed: 5kW
This does as expected on Discharges and keeps the Export rate at or thereabouts the desired value.
Now comes my issue, that I am seeing. I have altered the Correction factors >> Charge rate to be > 1.00 using steps of 0.1 [10%] as described in the guidance. I am up to 1.8 [80%] and yet again tonight, I see a Charge Rate of at least 5% lower than it needs to be to fully charge my AIO in the time window of my IOG overnight 23:30 - 05:30.
I completely drained the battery before the window to prove this absolutely this time. [Reserve of 4% withstanding].
As per my WW LOG, the current charge rate was set to 40%
Yet, just some simple math 13.5kW / 6 hours = 2.25kW
and 5kw * 40% [my WW set values] means I would miss my charge to 100% by at least 10% - even with a Correction Factor >> Charge Rate of 1.8
Something is either amiss with my understanding, or WW is not taking any notice of this correction factor. Please advise. Thanks in advance

admin

KristianS Thanks for highlighting this.

There is indeed a problem. These factors were incorrectly bound, so charge rate was bound to battery target and the other way around.

This has now been deployed and is fixed as per version v0.5.1160.

We've reset these factors back to 1.0 for the small number of users that had these correction factors set up.

KristianS

Brilliant. Thank you, Sir

KristianS

Hi Wim @admin - I am resurrecting this discussion again, please. But in the opposite direction.
I have noticed before, when I reset my Inverter to default, the next time I perform a Scheduled Export, the full rate is used for Export - in my case - 6kW
Should I adjust my Inverter rate to be the max my DNO allows [5kW] until such time we have a setting for both Import and Export rates settings that I believe you have on your To-do list?

duplada

I agree with you this Lack of separate Inverter Charge Rate / Discharge Rates drives me nuts. It means constantly having to juggle what can be exported against incorrect adjusted slot end times.

You can tell it's not going to be an easy job to achieve because @admin goes dark for a few days until the storm passes 😁 🥺 🫣

admin

duplada Ha. Yeah, requires a fair bit of work, don't worry it will come.

Also, sneak peak of something else for Agile fans - will be on a subdomain, publicly accessible.

WindyMiller

admin Oooh do tell. Display only or with some extra functionality?

I can see even more of my old phones/tablets being recruited in to display yet more data (11 at last count).

KristianS

admin I appreciate it will take work. In the meantime, what would be your guidance to set any parameters in WW or just use the native tools to do this manually?

admin

WindyMiller Display only for now yeah as it will be available for anyone.

johalareewi

What would be handy is a display showing how long the battery will last at the current discharge rate.
The Android Inverter Monitor app does it.

Maybe it could show on the home page.
Or it would be really cool if this could be shown on the Agile scheduler.
Like an arrow or a highlighted slot to indicate when the battery will run out.

KevinD

johalareewi I do like that idea, though I can already see the messages / complaints to admin that the battery ran out before it said it would 😉